1. 8th Grade Math Chapter 6 Review

2. 1) 30 is 20% of what number? What is 55% of 342?
Chapter 6 Review 1)
30 is 20% of what number?
What is 55% of 342?
82 is what percent of 50?

3. Answer 1) 30 is 20% of what number? What is 55% of 342?
Chapter 6 Review 1)
30 is 20% of what number?
What is 55% of 342?
82 is what percent of 50?
150
188.1
164%

4. What is the percent change if you go from 642 to 700?
Chapter 6 Review 2)
What is the percent change if you go from 642 to 700?
Old Price: $3.50
New Price: $4.00
What is the percent change?

5. Answer 2) What is the percent change if you go from 642 to 700?
Chapter 6 Review 2)
What is the percent change if you go from 642 to 700?
Old Price: $3.50
New Price: $4.00
What is the percent change?
9% increase
14.3% increase

6. 3) Write 7/16 as a decimal. Write 7/16 as a percent.
Chapter 6 Review 3)
Write 7/16 as a decimal.
Write 7/16 as a percent.
Write 32% as a decimal.
Write 32% as a fraction.

7. Answer 3) Write 7/16 as a decimal. Write 7/16 as a percent.
Chapter 6 Review 3)
Write 7/16 as a decimal.
Write 7/16 as a percent.
Write 32% as a decimal.
Write 32% as a fraction.
0.4375
43.75%
0.32
32/100 = 8/25

8. If the sales tax is 6%, what is the final cost?
Chapter 6 Review 4)
Write 8.7 as a percent.
Write 0.3% as a decimal.
Sticker price is $15.25.
If the sales tax is 6%, what is the final cost?

9. Answer 4) Write 8.7 as a percent. Write 0.3% as a decimal.
Chapter 6 Review 4)
Write 8.7 as a percent.
Write 0.3% as a decimal.
Sticker price is $15.25.
If the sales tax is 6%, what is the final cost?
870%
0.003
Tax is $0.92 so the total is $16.17

10. If there is a 7% sales tax, what would the final price be?
Chapter 6 Review 5)
Original price is $ After a 15% discount, what would the price be?
If there is a 7% sales tax, what would the final price be?

11. Answer
Chapter 6 Review 5)
Original price is $ After a 15% discount, what would the price be?
If there is a 7% sales tax, what would the final price be?
3100 – 654 = $2635
= $

12. Chapter 6 Review 6)
You invest $5000 for 6 years at a simple interest rate of 3%. At the end of that time, how much money do you have?

13. Answer
Chapter 6 Review 6)
You invest $5000 for 6 years at a simple interest rate of 3%. At the end of that time, how much money do you have?
$ = $5900

14. Sales tax is 6%. Price tag reads $210.00. What is the final cost?
Chapter 6 Review 7)
Old price is $350. New price is $ What is the percent of discount?
Sales tax is 6%. Price tag reads $ What is the final cost?

15. Answer
Chapter 6 Review 7)
Old price is $350. New price is $ What is the percent of discount?
Sales tax is 6%. Price tag reads $ What is the final cost?
15% decrease
$ = $222.60

16. Chapter 6 Review 8)
40% of the candies in a bag are red. There are 20 red candies. How many total candies are there in the bag?

17. Answer
Chapter 6 Review 8)
40% of the candies in a bag are red. There are 20 red candies. How many total candies are there in the bag?
50 candies total